| 1 | English | ictus | The pulse; A sudden attack, blow, stroke, or... |
| 2 | Latin | ictus | hit, struck; stabbed, stung; a blow, stroke,... |
| 3 | Latin | -tus | Forms the past participle of verbs; Forms... |
| 4 | Proto-Italic | -tus | — |
| 5 | Proto-Indo-European | -tus | Derives action nouns from verb roots |